Economics
microeconomics
ˌmʌɪkrəʊiːkəˈnɒmɪks,ˌmʌɪkrəʊɛkəˈnɒmɪks/
noun
the part of economics concerned with single factors and the effects of individual decisions.
macroeconomics
/ˌmakrəʊiːkəˈnɒmɪks,ˌmakrəʊɛkəˈnɒmɪks/
noun
the branch of economics concerned with large-scale or general economic factors, such as interest rates and national productivity.